Ferdinand guinter



UNITED STATES PATENT OFFICE.

FERDINAND GUINTER, OF AKRON, OHIO, ASSIGNOR OF ONE-HALF TO GEORGE PELLINGER AND CHARLES TRAXLER, BOTH OF SAME PLACE.

FOUNTAlN-lNKSTANDf SPECIFICATION forming part of Letters Patent No. 428,753, dated May 27, 1890.

Application filed February 28, 1890- Serial No. 342,058. (No model.)

T0 at whom it'mcty concern.-

Be it known that I, FERDINAND GUINTER, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Improvement in Fountain-Inkstands, of which the following is a specification.

My invention has relation to improvements in that class of fountain-inkstands in which the ink is contained in an air-tight cistern, through the top of which is inserted a vertically-sliding tube with a funnel-shaped top, having its lower end submerged in the ink, and by the, depression of which theair in the cistern will be compressed and force the ink through the tube into its top.

The objects of my invention are to provide a new and improved inkstand of the class specified, that shall be simple in construction, practical in operation, that may be filled without the removal of any part, and the parts of which may be readily separated and replaced for cleaning or other purpose.

To this end my invention consists in the peculiar construction and combination of parts hereinafter described, and then specifically pointed out in the claims, reference being had to the accompanying drawing, forming a part of this specification.

The accompanying drawing represents a vertical central section of my improved fountain-inkstand, and as all parts are circular in horizontal section and concentric about a common center detail views have not been thought necessary.

The lower part or cistern A is of glass or porcelain,terminatingin a reduced externallyscrew-threaded top. On this is fitted an internally-screw-threaded cap 13, preferably of hard rubber, having in the center a circular orifice'C, and depending from its lower face and integral therewith a central diaphragm in form of a hollow spherical sector D, having a central orifice for a tube, hereinafter mentioned, and a series of smaller orifices E disposed about said central orifice, leaving a chamber between the diaphragm and cap, as shown. A tight joint is secured between the cistern A and cap B by an annular gasket or packing-ring H. A tube F, having a funnelgreatest normal height.

shaped opening at the top, an enlarged upper partto fit the orifice O in the cap, and a smaller part to fit the opening in the dia-, phragm, is inserted in these openings, the lower end of which tube reaches nearly to the bottom of the cistern A. interposed between the large part of the tube F and the diaphragm D and closely fitting its smaller part isa diaphragm I, of soft rubber, in form of an inverted hollow spherical sector, whose outer edges rest on the upper face of the diaphragm D outside of the orifices E.

In operation the cistern A is filled with ink through the tube F by raising the tube until the diaphragm I, which adheres to it, is lifted from thediaphragm D, thereby permitting the air displaced by theink to escape through the orifice E, andthence between the orifice G and larger part of the tube F, the joint between which is not air-tight. Sufficient ink should be placed in the cistern to submerge the lower end of the tube F when at its The tube'F is then permitted to descend to the position shown in the drawing, where it is retained by the elasticity of the diaphragm Lwhose lower edge forms an air-tight joint with the diaphragm D. By depressing the tube F by the pen or otherwise the diaphragm I is flattened, thereby forcing air into the cistern and causing the ink to rise and fill the funnel-shaped top of the tube.

To permit the escape of air from the charm ber between the cap and diaphragm D as the tube F is depressed, a small air-duct Gr is made in the larger part of said tube from near the bottom of its larger part to the top, so arranged that by a slight depression of the tube it will form a connection between the interior of the chamber and the outer air.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an inkstand of the kind designated, the combination, with a diaphragm constituting a cover for said cistern, having an open ing for the ink tube and perforations disposed about said opening, of a depressible tube arranged to pass through said opening and enter said cistern, and an elastic diaphragm to inelose said tube and encounter said perforated diaphragm outside of its perforations, substantially as shown and described, and for the purpose stated.

2. The combina1ion,\vith the cistern A and its cap 1 bearing the perforated diaphragm D, of the vertieally-moving tube I and the elastic diaphragm I, arranged to inelose the tube F and meet the diaphragm 1) outside of its perforations, substantially as shown and described, and for the purpose specified.

3. The combination, with the cistern A, cap B, and diaphragms D and I, of the tube 1*,arranged to slide in openings in the cap ll and diaphragm D and bearing an air-duct G, substantially as shown and described.

FERDINAND GUINTER.

In presence of C. E. IIUMPIIREY, C. I. IIUMPIIREY. 

